RCBS Lube-A-Matic Bullet Sizing Die Features The RCBS Lube-A-Matic Bullet Sizing Die in .314 inch diameter is built with a hardened interior designed to hold tight tolerances and keep cast bullets properly aligned as they pass through the sizing and lubricating process. Consistent sizing is important for cast bullet accuracy since an undersized or oversized bullet can affect how it engages the rifling and how consistently it groups. This die is also engineered to handle harder lubricants without difficulty which gives reloaders more flexibility in choosing a lube suited to their particular load and climate. For bullets designed with a gas check the die also crimps that check into place during the sizing step saving a separate operation. This .314 inch die is compatible with the RCBS Lube-A-Matic two-bullet sizer and lubricator as well as the Lyman 450 and 4500 lube sizers giving reloaders flexibility in which press they already own. RCBS offers this sizing die across a wide range of diameters so reloaders working multiple calibers can standardize on the same sizing and lubricating system. Casting and sizing bullets at home is a cost-effective way to produce high-volume ammunition and a properly sized well-lubricated bullet is a key part of getting reliable function and accuracy from cast loads. This die is a practical focused tool for anyone serious about cast bullet reloading in .314 inch diameter. RCBS Lube-A-Matic Bullet Sizing Die Specifications Manufacturer: RCBS Model: Lube-A-Matic Bullet Sizing Die Diameter: .314 Caliber: .314 Available At: GrabAGun